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Siemens 3VA4145-4ED24-0AA0 Molded Case Circuit Breaker

  • 45A
  • 2 Pole
  • Bolt-On
Siemens 3VA4145-4ED24-0AA0
Molded Case Circuit Breaker
Brand Siemens
SKU 3VA4145-4ED24-0AA0
Select Item Condition
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  • 45A
  • 2 Pole
  • Bolt-On

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Siemens 3VA4145-4ED24-0AA0 - 45A 2 Pole Molded Case Circuit Breaker

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$374.10 In Stock

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Description

Siemens 3VA4145-4ED24-0AA0 molded case circuit breaker is rated 45A with 2 poles, 1 phase and rated voltages of 240VAC, 480VAC and 600Y/347VAC. It provides interrupting ratings of 14kAIC at 600Y/347VAC and 25kAIC at 480V, standard protection, and a thermal magnetic trip with fixed thermal and fixed magnetic settings and long-time and instantaneous functions. The 3VA41 frame has panelboard and switchboard mounting and a load side lug connection. Dimensions are 5.09 in high, 2 in wide and 2.96 in deep. It has UL approval and WEEE, RoHS and REACh standards.

Specifications

Key specifications
Brand Siemens
Part Number 3VA4145-4ED24-0AA0
Series 3VA4
Amperage 45A
Poles 2
Mounting Style Bolt-On
Voltage 240VAC, 480VAC, 600Y/347VAC
Phase 1
AIC Rating 65kA @ 240VAC, 25kA @ 480VAC, 14kA @ 600Y/347VAC
Fit and installation
Frame Type 3VA41
Terminal Type Lugs
For Use With Siemens Panelboards
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Fixed Magnetic
Standards and features
Available Options Alarm Switch, Auxiliary Switch, Shunt Trip, Undervoltage Release
Standards CSA C22.2 No. 5, IEC 60947-2, UL 489
Approval CE, CSA, UL
Temp Rating -25C to 70C
Construction Features HACR Rated

Product FAQs

7 answers
How should I use the 45A rating when selecting the Siemens 3VA4145-4ED24-0AA0?

The breaker has a rated current of 45A. Select it by checking the calculated circuit load and conductor ampacity against the applicable installation requirements, rather than choosing by load current alone.

How do I choose among its voltage ratings?

Match the circuit voltage and system configuration to the 240VAC, 480VAC or 600Y/347VAC rating. The 600Y/347VAC rating applies to a grounded-wye system, so system configuration matters as well as voltage.

How do I check whether its interrupting rating is adequate?

Compare the available fault current at the installation point with the interrupting rating at the applicable voltage: 25kAIC at 480V or 14kAIC at 600Y/347VAC. The available fault current must not exceed the applicable interrupting rating.

How does the thermal-magnetic trip protect the circuit?

The thermal element provides long-time overload protection, while the magnetic element provides instantaneous response to high fault current. This combines delayed response to overloads with rapid response to short circuits.

Can I adjust the overload or instantaneous trip settings?

Both the thermal and magnetic trip settings are fixed. Select this breaker when the circuit protection design calls for fixed settings rather than field-adjustable overload or instantaneous settings.

What dimensions should I allow for when planning the installation?

The breaker measures 5.09 in high, 2 in wide and 2.96 in deep. Use these dimensions for physical layout planning, while allowing the wiring space and working clearances required for the installation.

What does the 2-pole rating mean for circuit planning?

This breaker has 2 poles for overcurrent protection. Use the pole count when planning the circuit's protected current paths; it describes the number of poles, not the amperage rating.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 5 reviews
Rating
Ratings
5 reviews
  • SW
    SHELDON W.
    Verified Buyer
    Reviewing
    Siemens 3VA4160-4ED34-0AA0 - 60A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    7/27/26
    SuperBreakers has you covered

    SuperBreakers has you covered when you’re in a pinch and need breakers at the last minute. Their customer service is excellent, and the team consistently goes above and beyond to help. I highly recommend them!

  • RS
    Rob S.
    Verified Buyer
    Reviewing
    Siemens 3VA4150-6ED34-0AA0 - 50A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    4/8/26
    50 amp breaker

    Very helpful and arrived quickly.

  • JB
    Josh B.
    Verified Buyer
    Reviewing
    Siemens 3VA4130-4ED24-0AA0 - 30A 2 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    3/5/26
    Breakers

    Exactly as described. Quick shipping.

  • JL
    Jeff L.
    Verified Buyer
    Reviewing
    Siemens 3VA4120-6ED14-0AA0 - 20A 1 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    2/11/26
    Better than new

    Great condition and fast shipping

  • KC
    Ken C.
    Verified Buyer
    Reviewing
    Siemens 3VA4150-4ED34-0AA0 - 50A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/22/25
    Breaker Order

    Good prices and fast shipping.